Python crawler learning 15

Python crawler learning 15

• send POST request

  import requests
  
  data = {
        
        
      'name': 'germy'
      , 'age': '25'
          }
  # 该网站可以判断请求是否为 POST 格式，如果是那么返回请求。
  url = 'https://www.httpbin.org/post'
  
  r = requests.post(url, data=data)
  print(r.text)
  print(r.json())
  

  operation result:

  

• response

  import requests
  
  url = 'https://ssr1.scrape.center/'
  
  r = requests.get(url)
  # 返回 状态码 为 int 类
  print(type(r.status_code), r.status_code)
  # 返回 响应头 为 requests.structures.CaseInsensitiveDict 类
  print(type(r.headers), r.headers)
  # 返回 cookie 为 requests.cookies.RequestsCookieJar 类
  print(type(r.cookies), r.cookies)
  # 返回 url 为 str字符串
  print(type(r.url), r.url)
  # 返回 请求历史 为 列表
  print(type(r.history), r.history)
  

  operation result:

  

  Requests built-in status code query method:

  # 通过比较返回码与内置的表示成功的状态吗，来保证请求是否得到正常响应，如果是，就输出请求成功的信息，否则终止程序。
  # 这里 我们用 requests.codes.ok 得到成功的状态码是200
  import requests
  
  url = 'https://ssr1.scrape.center/'
  
  r = requests.get(url)
  if not r.status_code == requests.codes.ok:
      exit()
  else:
      print('Request Successfully')
  

  operation result:

  ​ Request Successfully

  Return code and query conditions

  
  
  
  Gan, the picture is too big, it takes a lot of time to crop the picture

Today ends, to be continued...